Japan Kyoto Undated (c.1580) Nan Ryo Silver Oban 94mm x 150mm from the Kyoto Goto Family Mint masters, 162 grammes, a fantasy piece believed to have been struck at a later date . EF, Ex-Pacific Coast Auction Galleries, Gillio Coins Asia) Ltd. Hong Kong Coin show 1989, Auction Lot 884, Sold as seen.